package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;

/**
 * 集中处理所有异常
 *
 * @author Dremeue
 * @create 2020-04-15 23:14
 **/
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    /**
     * 处理校验参数的异常
     *
     * @param e
     * @return
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e) {
        // log.error("数据校验出现问题: {}, 异常类型:{}", e.getMessage(), e.getClass());

        BindingResult bindingResult = e.getBindingResult();
        HashMap<String, String> errorMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach((fieldError) -> {
            errorMap.put(fieldError.getField(), fieldError.getDefaultMessage());
        });

        return R.error(BizCodeEnume.VALID_EXCEPTION.getCode(), BizCodeEnume.VALID_EXCEPTION.getMsg()).put("data",
                errorMap);
    }

    /**
     * 处理统一的异常
     *
     * @param throwable
     * @return
     */
    @ExceptionHandler(Throwable.class)
    public R handleException(Throwable throwable) {
        return R.error(BizCodeEnume.UNKOWN_EXCEPTION.getCode(), BizCodeEnume.UNKOWN_EXCEPTION.getMsg());
    }
}
